I am using Biblatex, and verbose-ibid, and I would like to use author, name of journal for repeated citations of the same article, and author, editor's name and short title of the book for conference proceedings. I want to keep the short title option for books instead.

How can I achieve that? Or is there a style doing that already?

Any help appreciated

For the better explaining:
I give an example of what I am trying to achieve:

A. Assmann, "This is an article", BIFAO 56 (2000), 23-45.

Later this article should be shortened as

Assmann, BIFAO 56.

For the conference proceedings or contributions to edited books, the original reference should be full:

R. Parkinson, "This is a contribution", in V. Davies, This is a book proceedings, Paris: My publisher, pp. 34-56.

Later it should be shortened to

Parkinson, in Book Proceedings.

The title of the book should be shortened as usual for books. I give you three examples from my bibliography, but Habachi entry is the "perfect one" (just added):

If I understand you correctly, you may be able to produce this output by renewing the cite:short macro in verbose-ibid.cbx. You will want to use the \ifentrytype{article} and \ifentrytype{inproceedings} switches. Could you give a more precise example of what you want to achieve and which bibliography fields you are using?
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ienisseiJan 19 '12 at 9:53

The cite:short macro is called by verbose-ibid for references that have already been cited at least once. What I did is redefine it so that it will print the author's name and then, if it is an article, the journal and volume or if it is a text in some proceedings, the "in" string and the book title or else just the book title.

You may need to add additional entry types (inproceedings, etc.) if you are using them as well. Make sure to comment the end of every line with the % character, so as to avoid unwanted spaces.

The answer above works almost perfectly. For incollection however it add both the main title of the collected work and the subtitle. I am editing the original question, also including another full incollection entry
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Roberto GozzoliJan 19 '12 at 21:29

I have edited the answer so that it only displays the booktitle field now, which seems to be what you are looking for. — I am also deleting my last paragraph, as I realise this is not an issue in your case (I thought you meant the shorttitle of the main proceedings, which would be quite difficult to implement).
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ienisseiJan 19 '12 at 21:44

The solution works perfectly, at least at a first scrutiny. @ienissei, may I contact you again if I need to do some changes about it? Heartfelt thanks
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Roberto GozzoliJan 19 '12 at 23:07

@RobertoGozzoli Thank you very much for the warm comment. Indeed you can contact me anytime, although some people here are probably more qualified than me.
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ienisseiJan 19 '12 at 23:50